nelhage/reptyr — pull request #14 by ebroder (2011-10-31 16:45:05+00:00)
Title: Use obscure make syntax to make Debian packaging easier

Debian wants to be able to inject a standard set of buildflags, some based on policy and some based on user input (for instance, -O2, unless DEB_BUILD_OPTIONS is set to noopt)

This patch lets me run "make CFLAGS=foo" and have that foo append, rather than override, the CFLAGS in your Makefile